The epic “Spider-Man” battle between two iconic skyscrapers, the Empire State Building and the Chrysler Building, is showing no sign of a happy ending.

We revealed how Broadway’s biggest musical had taken on the town’s tallest tower after the Empire State refused to turn on its lights in Spidey’s colors — red and blue — for “Spider-Man: Turn Off the Dark,” which officially opened in June after months of “previews.”

Empire State execs pointed to the Chrysler Building’s starring role in the show. They said they’d do it only if the battle between Spidey and the Green Goblin were moved from the Chrysler to the Empire State. That sent Spidey bosses, who even offered to have Bono and The Edge turn on the lights in a publicity appearance, into a spin, refusing to switch the set.

But we can reveal that Spidey tried to offer an olive branch and approached Empire State chiefs again, asking them to light the tower tomorrow for the musical’s first anniversary.

But a source told us, “Spider-Man got an official ‘denied’ letter” late last week. So in response, they ordered a giant cake in the shape of the Chrysler Building to be presented to the cast on stage after today’s matinee.

Empire State Building owner Anthony Malkin told us, “[We] declined a lighting for the opening night of ‘Spider-Man’ [last year] because, among other things, it was a brand-new show, not a significant anniversary. The fact that the show prominently features the Chrysler Building on stage was also not helpful.

“In response to ESB’s lighting denial, the show’s management proactively generated negative press for ESB,” Malkin said. “We have not changed our policy about lighting for Broadway shows, nor have we changed our perspective towards this show in particular.”

Show spokesman Rick Miramontez said, “We bear no ill will towards the Empire State Building. We will happily make do by celebrating with New York’s most beautiful structure — the Chrysler Building.”